Road-plate for protecting roads



J. LOURIM.

ROAD PLATE FOR PROTECTING ROADS.

APPLICATION FILED SEPT. 1 x, 1920.

'1 375,792. Patented Apr. 26,1921.

05522 Laara'zza- JOHN LOUBIM, 0F BAY CITY, MICHIGAN. V

ROAD-PLATE FOR PROTECTING ROADS.

Specification of Letters Patent.

Patented Apr. 26, 1921.

Application filed September 11, 1820. Serial No. 469,735.

To all whom it may concern:

Be it known that 1, JOHN LOURIM, a citizen of the United States, residing at Bay City, in the county of Bay and State of Michigan, have invented certain new and useful Improvements in Road-Plates for Protecting Roads; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

This invention relates to roadways.

An object of this invention is to provide a novel construction of road plate for the protection of roads and streets subjected to heavy traffic.

A further object of this invention is to provide a specific reinforcing means for the normal track-way without the expense and disadvantages of having this reinforcing means extend clear across the road.

A further object of this invention is the provision of novel means for anchoring said plates in position against accidental displacement from any cause, as from strains and stresses to which they are subjected in use. 7

With these and other objects in view, the invention consists in the construction, the combination, the details and the arrangement of parts as will hereinafter be more fully disclosed in the accompanying drawings, in which like reference characters designate corresponding parts throughout the several views, in which drawings:

Figure 1 is a fragmentary plan view of a road equipped with the road plates of my invention;

Fig. 2 is a fragmentary section showing the overlapping of the road plates;

Fig. 3 is an enlarged fragmentary top plan view showing the preferred form of the sections;

Fig. 4 is a section at 14L of Fig. 1;

Fig. 5 is a section at 5-5 of Fig. 4; and

Fig. 6 is a detail View, in side elevation, of the anchoring base and screw.

Referring now in detail to the drawings:

1 designates the road plates, there being two shown in the drawings, each of said plates having an inclined end 2, as shown, thus forming a diagonal joint through the plates. 1 consider this diagonal joint very important, as, by this construction, the wheel of a vehicle traveling upon my road plates and crossing the diagonal joint will be in contact with both plates at the same time. The diagonal joint also tends to pre vent skidding of vehicles. 7

The adjacent plates overlap at thediagonal oint, as clearly shown in Figs. .1 and 2. Each of said plates is provided with longitudinally extending side flanges 3, which overlap at their inclined ends 2.

Suitable means are provided for anchoring the plates in position against accidental displacement, and, as herein shown, such means comprise anchoring bases v6, which are substantially truncated cone-shaped, and each provided with a preferably triangular anchoring head or flange 7. Each of said truncated cone-shaped anchoring bases, toward the apex thereof, is internally threaded, as shown 8. In use, said anchoring ases 6 are sunk in a body of concrete 9 before said concrete becomes hard, the anchoring bases being thereby held against upward movement, as is obvious. Upon said body or layer of concrete my road plates 1 are disposed.

Said road plates 1 are suitably apertured, as shown at 10. Preferably, such apertures are disposed along, and adjacent to, the diagonal joint of the plates, and each of said apertures is preferably somewhat elongated to permit expansion and contraction of said plates when fastening means have been passed through said openings.

Preferably, each plate,'at the overlapping portion thereof, is provided with a depres sion 1, the depression in one plate receiving the overlapping portion of the other plate, when the plates are assembled for use.

Preferably, also, each plate is provided with depressions 1 which encircle the bolt openings 10.

Projecting through said openings 10 are threaded bolts 12 which are screwed into Said plates 1 are preferably longitudinally and transversely grooved upon their upper surface, as shown 13, for the purpose of draining oil water from said plates, and also the purpose of providing corrugated road surface to prevent skidding.

Having thus fully described my invention, what 1 claim to be new is:

l. A roadway comprising a concrete bed and metallic strips spaced apart substair tially the standard wagon width, mounted in said concrete.

2-. A roadway comprising a concrete bed and metallic strips spaced apart substantially the standard wagon width, mounted in said concrete, said strips diago nally spliced.

A roadway comprising a concrete bed and metallic strips spaced apart substantially the standard wagon width, mounted in Said concrete, said strips diagonally spliced, and overlapping at said splice.

at. In a roadway, a means ior anchoring metallic wear plates comprising a member to be embodied, provided with internal screw threads, perforations in said plates and a screw threaded member, the threads on said screw-threaded member fitting the threads in said member to be embedded.

5. A means for anchoring metallic strips in a roadway, including a member to be embedded and means for lining the metallic strips relative to said member, said member provided with a flanged bottom.

6. A means for anchoring metallic strips in a roadway, including a member to be embedded and means for fining the metallic strips relative to said member, said member provided with a flanged bottom, said flange bein triangular. V

7. Metallic road plates, and means for securing said read plates in position, comprising anchoring bases adapted to be seated in a body of concrete, and internally threaded, and securing bolts passing through said plates and screwed into said anchoring bases.

8. Road plates disposed end to end and provided with inclined overlapping ends forming a diagonal joint, and means for securing said road plates in position, co1nprising anchoring bases adapted to be seati a body of concrete, and securing bolts through said plates and screwed into the said anchoring bases.

9. Road plates having inclined overlapping ends formin a diagonal joint, means for securing said road plates in position, comprising anchoring bases adapted to be seated in a body of concrete beneath said plates, and securing bolts passin through said plates and screwed into the said anchoring bases.

10. Road plates disposed end to end, means for securing said road plates in position, comprising truncated cone shaped anchoring bases adapted to be seated in a body of concrete beneath said plates, and securing bolts passing through said plates, and screwed into the said anchoring bases.

11. Metallic road plates provided with overlapping ends, means for securing said road plates in position, comprising anchoring bases adapted to be seated in a body of concrete disposed beneath said plates, and securing bolts passing through said depressed portions ofthe road plates and screwed into said anchoring bases.

12. Metallic road plates provided with overlapping ends, means for securing said road plates in position, comprising anchoring bases adapted to be seated in a body of concrete, disposed beneath said plates, and securing bolts passing through depressed portions or the road plates and screwed into said anchoring bases, said securing bolts having heads seated in the top depression and asphalt disposed in said top depression around said heads.

13. Road plates disposed end to end and each having longitudinally extending side flanges, means for securing said road plates in position, comprising anchoring bases adapted to be seated in a body of concrete disposed beneath said plates, and securing bolts passing through said plates and screwed into said anchoring bases.

in testimony whereof I hereunto afilx my signature.

JOHN LOURIM. 

